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Characterization of intracellular bacteria in the freshwater dinoflagellatePeridinium cinctum
Authors:M. Schweikert  B. Meyer
Affiliation:(1) Department of Zoology, Biological Institute, University of Stuttgart, Pfaffenwaldring 57, 70550 Stuttgart, Federal Republic of Germany;(2) Max-Planck-Institut für Limnologie, Plön
Abstract:Summary Intracellular bacteria belonging to two phylogenetically different groups of eubacteria were found in cultures of the freshwater dinoflagellatePeridinium cinctum (O. F. Müller) Ehrenberg isolated from the eutrophic lake Plußsee (Federal Republic of Germany). The phylogenetic relationships of the bacteria were studied with fluorochrome-conjugated oligonucleotides specific for archaebacteria, eubacteria, agr-, beta- and gamma-proteobacteria, complementary to 16S rRNA and 23S rRNA sequences, respectively. The bacteria are members of the eubacterial agr- and gamma-subgroups of proteobacteria.
Keywords:Intracellular bacterium  Freshwater dinoflagellate  Fluorescent in situ hybridization  Oligonucleotide probe  Transmission electron microscopy
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